Adobe Tutorial

So here was the portraits that were shot, one with spectacles and one without spectacles. 

We will be using layers masks of PSE 9 to correct the glare. The same can though be achieved using PSE 8 magnetic lasso tool as well. However I prefer layer masks in PSE 9 as they give me flexibility of using opacity and transparency of the pen and eraser tools to give more realistic results.

1. Open both the images in PSE 9.

2. Select the image without spectacles in workspace and using rectangular marquee select the area around the eyes as shown below. 

Right click the selection made and select Layer via Copy . A new layer gets created in the Layer palette as shown:

3. Once done, select Move tool from tool bar and drag it over the other image(with spectacles) in the project bin. The dragged layer now gets created in the spectacle image as well as shown.

4.  Now we would reposition this portion of the layer above background layer such that the forehead lines and the nose line overlap over each other. Doing this I realized that one image had the head tilted while the other had the head straight up. So we will first transform it using Control+T and would rotate it a bit so that both the layers can be inlined properly.

In the above image I have rotated the upper layer a bit so that the nose line of the person match.

5. Now we would create a copy of the background layer by selecting it and dragging it over the new layer icon in the layer palette or just press Control+J selecting the background layer.

Once done, move the background copy layer on the top by dragging it above the layer on the top. Now the layer with eyes we dragged from other image goes below the spectacles and we see following in the layers palette and the editing workspace :

6. Select the background copy layer and go to Layer> Layer Mask>Reveal All. 

Now reduce the opacity of the brush from the top bar to somewhere around 50%. Brush over the area of the eyes inside the spectacles.  



If any extra areas are brushed, that can be reverted using the eraser tool or by just making the foreground color white and rubbing it over the extra areas painted.

If we do not reduce the opacity while brushing then the mask is totally removed over the areas inside spectacles which looks as if there are no glasses in the spectacles. So in order to give realistic look of the lenses, the eyes are brushed with reduced opacity and keeping unbrushed areas near the edges to leave some glare there.

Here is my final output :

Here are the initial and edited images :